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Finding the Fourth Proportional to 53,950.72, 80,925.96 and 18,900.40

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Solution

The fourth proportional to 53,950.72, 80,925.96 and 18,900.40 is: 28,350.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,950.72 : 80,925.96 = 18,900.40 : x
  2. Step 2: Convert to fraction form
    53,950.72/80,925.96 = 18,900.40/x
  3. Step 3: Cross multiply
    53,950.72x = 80,925.96 × 18,900.40
  4. Step 4: Simplify right side
    53,950.72x = 1,529,533,014.38
  5. Step 5: Solve for x
    x = 1,529,533,014.38/53,950.72
  6. Step 6: Final answer
    x = 28,350.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.